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DNS: a. What is the difference between local name server and authoritative name server? b. What happens if the same name is assigned to different

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DNS: a. What is the difference between local name server and authoritative name server? b. What happens if the same name is assigned to different IP addresses in/etc/hosts? I.e., for the configuration shown above, what happens in the lab when we execute: #ping PC4. tcpip-lab.net c. Explain the line role of time to live (TTL) located at the top of the DNS zone data file at the authoritative name server. How does the TTL size affect the load of the authoritative name server? Explain

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